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When compiling GROUP BY Item_ref instances are dereferenced in setup_copy_fields(), i.e. replaced with the corresponding Item_field (if they point to one) or Item_copy_string for the other cases. Since the Item_ref (in the Item_field case) is no longer used the information about the aliases stored in it is lost. Fixed by preserving the column, table and DB alias on dereferencing Item_ref mysql-test/r/metadata.result: Bug #20191: getTableName gives wrong or inconsistent result when using VIEWs - test case mysql-test/t/metadata.test: Bug #20191: getTableName gives wrong or inconsistent result when using VIEWs - test case sql/item.cc: Bug #20191: getTableName gives wrong or inconsistent result when using VIEWs - use the table and db name to fill up the metadata for columns sql/sql_select.cc: Bug #20191: getTableName gives wrong or inconsistent result when using VIEWs - preserve the field, table and DB name on dereferencing an Item_ref
84 lines
2.2 KiB
Plaintext
84 lines
2.2 KiB
Plaintext
#
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# Test metadata
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#
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--disable_warnings
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drop table if exists t1,t2;
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--enable_warnings
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--enable_metadata
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# PS protocol gives slightly different metadata
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--disable_ps_protocol
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#
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# First some simple tests
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#
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select 1, 1.0, -1, "hello", NULL;
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create table t1 (a tinyint, b smallint, c mediumint, d int, e bigint, f float(3,2), g double(4,3), h decimal(5,4), i year, j date, k timestamp, l datetime, m enum('a','b'), n set('a','b'), o char(10));
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select * from t1;
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select a b, b c from t1 as t2;
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drop table t1;
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#
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# Test metadata from ORDER BY (Bug #2654)
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#
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CREATE TABLE t1 (id tinyint(3) default NULL, data varchar(255) default NULL);
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INSERT INTO t1 VALUES (1,'male'),(2,'female');
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CREATE TABLE t2 (id tinyint(3) unsigned default NULL, data char(3) default '0');
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INSERT INTO t2 VALUES (1,'yes'),(2,'no');
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select t1.id, t1.data, t2.data from t1, t2 where t1.id = t2.id;
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select t1.id, t1.data, t2.data from t1, t2 where t1.id = t2.id order by t1.id;
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select t1.id from t1 union select t2.id from t2;
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drop table t1,t2;
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#
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# variables union and derived tables metadata test
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#
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create table t1 ( a int, b varchar(30), primary key(a));
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insert into t1 values (1,'one');
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insert into t1 values (2,'two');
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set @arg00=1 ;
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select @arg00 FROM t1 where a=1 union distinct select 1 FROM t1 where a=1;
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select * from (select @arg00) aaa;
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select 1 union select 1;
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select * from (select 1 union select 1) aaa;
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drop table t1;
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--disable_metadata
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#
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# Bug #11688: Bad mysql_info() results in multi-results
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#
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--enable_info
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delimiter //;
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create table t1 (i int);
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insert into t1 values (1),(2),(3);
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select * from t1 where i = 2;
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drop table t1;//
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delimiter ;//
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--disable_info
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#
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# Bug #20191: getTableName gives wrong or inconsistent result when using VIEWs
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#
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--enable_metadata
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create table t1 (id int(10));
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insert into t1 values (1);
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CREATE VIEW v1 AS select t1.id as id from t1;
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CREATE VIEW v2 AS select t1.id as renamed from t1;
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CREATE VIEW v3 AS select t1.id + 12 as renamed from t1;
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select * from v1 group by id limit 1;
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select * from v1 group by id limit 0;
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select * from v1 where id=1000 group by id;
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select * from v1 where id=1 group by id;
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select * from v2 where renamed=1 group by renamed;
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select * from v3 where renamed=1 group by renamed;
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drop table t1;
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drop view v1,v2,v3;
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--disable_metadata
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# End of 4.1 tests
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